From 17f3a8b5f5c9097c658d662df9beaff0932b0242 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 28 Jan 2021 12:25:48 +0100 Subject: s390/qeth: remove qeth_get_ip_version() Replace our home-grown helper with the more robust vlan_get_protocol(). This is pretty much a 1:1 replacement, we just need to pass around a proper ETH_P_* everyhwere and convert the old value range. For readability also convert the protocol checks in qeth_l3_hard_start_xmit() to a switch statement. Signed-off-by: Julian Wiedmann Acked-by: Willem de Bruijn Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_core.h | 40 ++++++++++++++-------------------------- 1 file changed, 14 insertions(+), 26 deletions(-) (limited to 'drivers/s390/net/qeth_core.h') diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 331dcbbf3e25..a1da83b0b0ef 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -956,24 +956,6 @@ static inline int qeth_get_elements_for_range(addr_t start, addr_t end) return PFN_UP(end) - PFN_DOWN(start); } -static inline int qeth_get_ip_version(struct sk_buff *skb) -{ - struct vlan_ethhdr *veth = vlan_eth_hdr(skb); - __be16 prot = veth->h_vlan_proto; - - if (prot == htons(ETH_P_8021Q)) - prot = veth->h_vlan_encapsulated_proto; - - switch (prot) { - case htons(ETH_P_IPV6): - return 6; - case htons(ETH_P_IP): - return 4; - default: - return 0; - } -} - static inline int qeth_get_ether_cast_type(struct sk_buff *skb) { u8 *addr = eth_hdr(skb)->h_dest; @@ -984,14 +966,20 @@ static inline int qeth_get_ether_cast_type(struct sk_buff *skb) return RTN_UNICAST; } -static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv) +static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, + __be16 proto) { struct dst_entry *dst = skb_dst(skb); struct rt6_info *rt; rt = (struct rt6_info *) dst; - if (dst) - dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0); + if (dst) { + if (proto == htons(ETH_P_IPV6)) + dst = dst_check(dst, rt6_get_cookie(rt)); + else + dst = dst_check(dst, 0); + } + return dst; } @@ -1014,11 +1002,11 @@ static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb, return &ipv6_hdr(skb)->daddr; } -static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) +static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, __be16 proto) { *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; - if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || - (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) + if ((proto == htons(ETH_P_IP) && ip_hdr(skb)->protocol == IPPROTO_UDP) || + (proto == htons(ETH_P_IPV6) && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) *flags |= QETH_HDR_EXT_UDP; } @@ -1145,10 +1133,10 @@ int qeth_stop(struct net_device *dev); int qeth_vm_request_mac(struct qeth_card *card); int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, - struct qeth_qdio_out_q *queue, int ipv, + struct qeth_qdio_out_q *queue, __be16 proto, void (*fill_header)(struct qeth_qdio_out_q *queue, struct qeth_hdr *hdr, struct sk_buff *skb, - int ipv, unsigned int data_len)); + __be16 proto, unsigned int data_len)); /* exports for OSN */ int qeth_osn_assist(struct net_device *, void *, int); -- cgit